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https://github.com/esp8266/Arduino.git
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131 lines
4.0 KiB
C++
131 lines
4.0 KiB
C++
#include <ESP8266WiFi.h>
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#include <WiFiClient.h>
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#include <ESP8266WebServer.h>
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#ifndef STASSID
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#define STASSID "your-ssid"
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#define STAPSK "your-password"
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#endif
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const char* ssid = STASSID;
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const char* password = STAPSK;
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ESP8266WebServer server(80);
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// Check if header is present and correct
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bool is_authenticated() {
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Serial.println("Enter is_authenticated");
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if (server.hasHeader("Cookie")) {
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Serial.print("Found cookie: ");
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String cookie = server.header("Cookie");
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Serial.println(cookie);
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if (cookie.indexOf("ESPSESSIONID=1") != -1) {
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Serial.println("Authentication Successful");
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return true;
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}
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}
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Serial.println("Authentication Failed");
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return false;
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}
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// login page, also called for disconnect
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void handleLogin() {
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String msg;
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if (server.hasHeader("Cookie")) {
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Serial.print("Found cookie: ");
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String cookie = server.header("Cookie");
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Serial.println(cookie);
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}
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if (server.hasArg("DISCONNECT")) {
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Serial.println("Disconnection");
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server.sendHeader("Location", "/login");
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server.sendHeader("Cache-Control", "no-cache");
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server.sendHeader("Set-Cookie", "ESPSESSIONID=0");
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server.send(301);
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return;
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}
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if (server.hasArg("USERNAME") && server.hasArg("PASSWORD")) {
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if (server.arg("USERNAME") == "admin" && server.arg("PASSWORD") == "admin") {
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server.sendHeader("Location", "/");
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server.sendHeader("Cache-Control", "no-cache");
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server.sendHeader("Set-Cookie", "ESPSESSIONID=1");
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server.send(301);
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Serial.println("Log in Successful");
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return;
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}
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msg = "Wrong username/password! try again.";
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Serial.println("Log in Failed");
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}
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String content = "<html><body><form action='/login' method='POST'>To log in, please use : admin/admin<br>";
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content += "User:<input type='text' name='USERNAME' placeholder='user name'><br>";
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content += "Password:<input type='password' name='PASSWORD' placeholder='password'><br>";
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content += "<input type='submit' name='SUBMIT' value='Submit'></form>" + msg + "<br>";
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content += "You also can go <a href='/inline'>here</a></body></html>";
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server.send(200, "text/html", content);
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}
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// root page can be accessed only if authentication is ok
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void handleRoot() {
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Serial.println("Enter handleRoot");
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String header;
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if (!is_authenticated()) {
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server.sendHeader("Location", "/login");
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server.sendHeader("Cache-Control", "no-cache");
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server.send(301);
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return;
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}
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String content = "<html><body><H2>hello, you successfully connected to esp8266!</H2><br>";
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if (server.hasHeader("User-Agent")) { content += "the user agent used is : " + server.header("User-Agent") + "<br><br>"; }
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content += "You can access this page until you <a href=\"/login?DISCONNECT=YES\">disconnect</a></body></html>";
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server.send(200, "text/html", content);
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}
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// no need authentication
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void handleNotFound() {
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String message = "File Not Found\n\n";
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message += "URI: ";
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message += server.uri();
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message += "\nMethod: ";
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message += (server.method() == HTTP_GET) ? "GET" : "POST";
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message += "\nArguments: ";
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message += server.args();
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message += "\n";
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for (uint8_t i = 0; i < server.args(); i++) { message += " " + server.argName(i) + ": " + server.arg(i) + "\n"; }
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server.send(404, "text/plain", message);
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}
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void setup(void) {
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Serial.begin(115200);
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WiFi.mode(WIFI_STA);
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WiFi.begin(ssid, password);
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Serial.println("");
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// Wait for connection
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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}
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Serial.println("");
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Serial.print("Connected to ");
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Serial.println(ssid);
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Serial.print("IP address: ");
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Serial.println(WiFi.localIP());
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server.on("/", handleRoot);
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server.on("/login", handleLogin);
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server.on("/inline", []() {
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server.send(200, "text/plain", "this works without need of authentication");
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});
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server.onNotFound(handleNotFound);
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// ask server to track these headers
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server.collectHeaders("User-Agent", "Cookie");
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server.begin();
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Serial.println("HTTP server started");
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}
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void loop(void) {
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server.handleClient();
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}
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